{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7945a849745e7be16f85ef26f3796b175026da708c3a40c3ac7be737951aaec4",
    "signature": "0xf2d1f55754d9798ead5a095c0962a0e3ce17daed68c5ebc127cd7c6a2d30b67354075f3f63e1d9020496464d96254c07206bd560906200755425fdd6f59897861b",
    "signer": "0xE7743A7400A92290CfE93A3de48a3D4A33D9E97b",
    "userId": "802326336"
  }
}